Inclusion across education contexts is critical to acknowledge and inspire the full potential of people with intellectual and developmental disabilities (IDD). In the early stages of a postsecondary education program's development, peers and faculty are integral stakeholders to promoting an inclusive campus life. We conducted a campus-wide survey at a large public university to evaluate the perspectives of 1,867 faculty and students regarding their views of inclusion in student life and their attitudes toward prospective students with IDD. We incorporated a mixed-methods approach to summarize these views by using correlations, linear regression, and qualitative analysis of open-ended responses. We offer recommendations for research and practice aimed at increasing inclusive opportunities for students with IDD and their peers on college campuses.